>0 6164 DB53
I believe that is a dodge wrench
>R1 inside a circle stamped
Rhode Island Tool Co
> just the letter S on it.
Funny, it doesn't look like an S wrench...(ducking).
Probably for 'Special' , eg, a non standard size pair for someone
>MFD USA
The panel design is the thing on that one, but I forget whose it is...(indestro????)